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Jeremy Cline 45c8178cf6 net: socket: fix potential spectre v1 gadget in socketcall 
commit c8e8cd579bb4265651df8223730105341e61a2d1 upstream.

'call' is a user-controlled value, so sanitize the array index after the
bounds check to avoid speculating past the bounds of the 'nargs' array.

Found with the help of Smatch:

net/socket.c:2508 __do_sys_socketcall() warn: potential spectre issue
'nargs' [r] (local cap)

Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jeremy Cline <jcline@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-08-06 16:20:48 +02:00
..
6lowpan
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
9p
9p/trans_virtio: discard zero-length reply
2018-02-22 15:42:30 +01:00
802
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
8021q
net: fix use-after-free in GRO with ESP
2018-07-22 14:28:44 +02:00
appletalk
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
atm
atm: Preserve value of skb->truesize when accounting to vcc
2018-07-22 14:28:43 +02:00
ax25
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
batman-adv
batman-adv: fix packet loss for broadcasted DHCP packets to a server
2018-05-30 07:52:19 +02:00
bluetooth
Bluetooth: Fix connection if directed advertising and privacy is used
2018-04-19 08:56:19 +02:00
bpf
bpf: Align packet data properly in program testing framework.
2017-05-02 11:46:28 -04:00
bridge
netfilter: ebtables: reject non-bridge targets
2018-07-22 14:28:49 +02:00
caif
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
can
can: af_can: canfd_rcv(): replace WARN_ONCE by pr_warn_once
2018-01-23 19:58:17 +01:00
ceph
libceph, ceph: avoid memory leak when specifying same option several times
2018-05-30 07:52:04 +02:00
core
rtnetlink: add rtnl_link_state check in rtnl_configure_link
2018-07-28 07:55:42 +02:00
dcb
rtnetlink: make rtnl_register accept a flags parameter
2017-08-09 16:57:38 -07:00
dccp
net: dccp: switch rx_tstamp_last_feedback to monotonic clock
2018-07-22 14:28:44 +02:00
decnet
dn_getsockoptdecnet: move nf_{get/set}sockopt outside sock lock
2018-02-25 11:07:52 +01:00
dns_resolver
KEYS: DNS: fix parsing multiple options
2018-07-22 14:28:49 +02:00
dsa
net: dsa: Do not suspend/resume closed slave_dev
2018-08-06 16:20:48 +02:00
ethernet
networking: make skb_push & __skb_push return void pointers
2017-06-16 11:48:40 -04:00
hsr
net/hsr: Check skb_put_padto() return value
2017-08-22 13:40:23 -07:00
ieee802154
ieee802154: 6lowpan: fix possible NULL deref in lowpan_device_event()
2018-03-31 18:10:40 +02:00
ife
net: sched: ife: check on metadata length
2018-04-29 11:33:13 +02:00
ipv4
ipv4: frags: handle possible skb truesize change
2018-08-06 16:20:47 +02:00
ipv6
multicast: do not restore deleted record source filter mode to new one
2018-07-28 07:55:42 +02:00
ipx
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
iucv
net/iucv: Free memory obtained by kzalloc
2018-03-31 18:10:41 +02:00
kcm
kcm: Fix use-after-free caused by clonned sockets
2018-06-11 22:49:19 +02:00
key
af_key: Always verify length of provided sadb_key
2018-06-16 09:45:14 +02:00
l2tp
l2tp: revert "l2tp: fix missing print session offset info"
2018-05-19 10:20:27 +02:00
l3mdev
…
lapb
net, lapb: convert lapb_cb.refcnt from atomic_t to refcount_t
2017-07-04 22:35:16 +01:00
llc
llc: properly handle dev_queue_xmit() return value
2018-05-30 07:52:20 +02:00
mac80211
mac80211: use timeout from the AddBA response instead of the request
2018-06-21 04:02:55 +09:00
mac802154
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
mpls
mpls, nospec: Sanitize array index in mpls_label_ok()
2018-02-22 15:42:28 +01:00
ncsi
net/ncsi: Fix length of GVI response packet
2017-10-21 01:56:38 +01:00
netfilter
netfilter: nf_tables: check msg_type before nft_trans_set(trans)
2018-08-03 07:50:25 +02:00
netlabel
netlabel: If PF_INET6, check sk_buff ip header version
2018-05-30 07:52:40 +02:00
netlink
netlink: Fix spectre v1 gadget in netlink_create()
2018-08-06 16:20:48 +02:00
netrom
net, netrom: convert nr_node.refcount from atomic_t to refcount_t
2017-07-04 22:35:17 +01:00
nfc
net/nfc: Avoid stalls when nfc_alloc_send_skb() returned NULL.
2018-07-22 14:28:49 +02:00
nsh
nsh: set mac len based on inner packet
2018-07-22 14:28:49 +02:00
openvswitch
openvswitch: Don't swap table in nlattr_set() after OVS_ATTR_NESTED is found
2018-05-19 10:20:24 +02:00
packet
net/packet: fix use-after-free
2018-07-22 14:28:46 +02:00
phonet
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
psample
MAINTAINERS: Update Yotam's E-mail
2017-11-01 12:19:03 +09:00
qrtr
qrtr: add MODULE_ALIAS macro to smd
2018-05-30 07:52:05 +02:00
rds
rds: avoid unenecessary cong_update in loop transport
2018-07-22 14:28:49 +02:00
rfkill
rfkill: gpio: fix memory leak in probe error path
2018-05-16 10:10:26 +02:00
rose
…
rxrpc
rxrpc: Fix user call ID check in rxrpc_service_prealloc_one
2018-08-06 16:20:48 +02:00
sched
net_sched: blackhole: tell upper qdisc about dropped packets
2018-07-22 14:28:46 +02:00
sctp
sctp: not allow transport timeout value less than HZ/5 for hb_timer
2018-06-11 22:49:20 +02:00
smc
smc: fix sendpage() call
2018-06-21 04:02:53 +09:00
strparser
strparser: Remove early eaten to fix full tcp receive buffer stall
2018-07-22 14:28:47 +02:00
sunrpc
xprtrdma: Fix corner cases when handling device removal
2018-07-22 14:28:42 +02:00
switchdev
net: switchdev: Remove bridge bypass support from switchdev
2017-08-07 14:48:48 -07:00
tipc
tipc: eliminate KMSAN uninit-value in strcmp complaint
2018-06-21 04:02:56 +09:00
tls
sock: fix sg page frag coalescing in sk_alloc_sg
2018-07-28 07:55:42 +02:00
unix
License cleanup: add SPDX license identifiers to some files
2017-11-02 10:04:46 -07:00
vmw_vsock
VSOCK: fix loopback on big-endian systems
2018-07-22 14:28:47 +02:00
wimax
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
wireless
cfg80211: clear wep keys after disconnection
2018-05-30 07:51:58 +02:00
x25
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
xfrm
xfrm: Fix transport mode skb control buffer usage.
2018-05-30 07:52:19 +02:00
compat.c
net: support compat 64-bit time in {s,g}etsockopt
2018-05-19 10:20:24 +02:00
Kconfig
net: Remove CONFIG_NETFILTER_DEBUG and _ASSERT() macros.
2017-09-04 13:25:20 +02:00
Makefile
License cleanup: add SPDX GPL-2.0 license identifier to files with no license
2017-11-02 11:10:55 +01:00
socket.c
net: socket: fix potential spectre v1 gadget in socketcall
2018-08-06 16:20:48 +02:00
sysctl_net.c
sysctl: Remove dead register_sysctl_root
2017-04-16 23:42:49 -05:00